Performance Evaluation of FSJ1 FourComponent Radiometer in Arctic Environment
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Abstract:
Under the background of global warming, the global net radiation monitoring is become more and more important. It has gradually become an important way to study regional synoptic conditions and climate. In order to evaluate the domestic FSJ1 fourcomponent net radiometer, we tested it in Barrow, Alaska (2035°E, 714°N) from 10 to 23 April 2017, compared with the CNR4 fourcomponent net radiometer, which is widely used in the polar regions. The results show that FSJ1 fourcomponent net radiometer performs well in precision and linear correlation under different conditions of clearness and in both daytime and nighttime without icing/riming on surface. The relative error and correlation coefficient of parameters with CNR4 are within 5% and above 09, respectively. However, FSJ1 shows a delay in the response of the radiation change under the influence of polar condition when ice/rime forms on its surface. The relative errors of the pyranometer and pyrgeometer are up to 25% and 7%, respectively. Therefore, it is still a key point to improve the suitable ventilating and heating device for polar radiation stations, and the reasonable filtering method and parameterization scheme are also needed.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.